A 49.2-kg skater is standing at rest in front of a wall. By pushing against the...
A 49.2-kg skater is standing at rest in front of a wall. By pushing against the wall she propels herself backward with a velocity of -2.32 m/s. Her hands are in contact with the wall for 1.17 s. Ignore friction and wind resistance. Find the average force she exerts on the wall (which has the same magnitude, but opposite direction, as the force that the wall applies to her). Note that this force has direction, which you should indicate with the sign of your answer.
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A 49.2-kg skater is standing at rest in front of a wall. By
pushing against the...
A 50.2-kg skater is standing at rest in front of a wall. By pushing against the...
A 50.2-kg skater is standing at rest in front of a wall. By pushing against the wall she propels herself backward with a velocity of -1.44 m/s. Her hands are in contact with the wall for 0.717 s. Ignore friction and wind resistance. Find the average force she exerts on the wall (which has the same magnitude, but opposite direction, as the force that the wall applies to her). Note that this force has direction, which you should indicate with...
A 52.4-kg skater is standing at rest in front of a wall. By pushing against the...
A 52.4-kg skater is standing at rest in front of a wall. By pushing against the wall she propels herself backward with a velocity of -1.53 m/s. Her hands are in contact with the wall for 0.992 s. Ignore friction and wind resistance. Find the average force she exerts on the wall (which has the same magnitude, but opposite direction, as the force that the wall applies to her). Note that this force has direction, which you should indicate with...
1) A 48.5-kg skater is standing at rest in front of a wall. By pushing against...
1) A 48.5-kg skater is standing at rest in front of a wall. By
pushing against the wall she propels herself backward with a
velocity of -1.46 m/s. Her hands are in contact with the wall for
1.00 s. Ignore friction and wind resistance. Find the average force
she exerts on the wall (which has the same magnitude, but opposite
direction, as the force that the wall applies to her). Note that
this force has direction, which you should indicate...
A space probe is traveling in outer space with a momentum that has a magnitude of...
A space probe is traveling in outer space with a momentum that has a magnitude of 4.96 x 10 kg.m/s. A retrorocket is fired to slow down the probe. It applies a force to the probe that has a magnitude of 1.93 x 10 N and a direction opposite to the probe's motion. It fires for a period of 10.7 s. Determine the momentum of the probe after the retrorocket ceases to fire. A 48.0-kg skater is standing at rest...
A 28-kg beginning roller skater is standing in front of a wall. By pushing against the...
A 28-kg beginning roller skater is standing in front of a wall. By pushing against the wall, she is propelled backward with a velocity of -�1.2 m/s. While pushing, her hands are in contact with the wall for 0.80 s. Ignoring frictional effects, find the magnitude and direction of the impulse acting on the skater. a) +34 N s b) -34 N s c) -42 N s d) +42 N s e) -53 N s My teacher has marked -34...
answer all please 1 If a 71-kg astronaut at rest in space throws a ball with...
answer all please
1 If a 71-kg astronaut at rest in space throws a ball with mass 0.61 kg at a speed of 12 mph. What happens to the astronaut as a result? 4 A moving ball collides elastically with another ball that is twice as heavy and is initially at rest. What happens to the lighter ball as a result of the collision? (a) She picks up some of the movement of the ball, causing her to move forward....
Consider the 65.0 kg ice skater being pushed by two others shown in the figure.
Consider the 65.0 kg ice skater being pushed by two others shown in the figure. (a) Find the direction (in degrees) and magnitude (in N) of Ftot, the total force exerted on her by the others, given that the magnitudes F1 and F2 are 27.2 N and 18.2 N, respectively. (b) What is her initial acceleration (in m/s2) if she is initially stationary and wearing steel-bladed skates that point in the direction of Ftot? (c) What is her acceleration (in m/s2) assuming she...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on Earth. What will the traveler weight on another planet whose radius is 3 times that of the Earth and whose mass is also 9 times that of the Earth. Do not use any numerical values of the universal gravitational constant G, the mass of Earth, or the radius of Earth to get your answer. 2. Two skaters, a man and a woman, are standing...
1) A 48.5-kg skater is standing at rest in front of a wall. By
pushing against the wall she propels herself backward with a
velocity of -1.46 m/s. Her hands are in contact with the wall for
1.00 s. Ignore friction and wind resistance. Find the average force
she exerts on the wall (which has the same magnitude, but opposite
direction, as the force that the wall applies to her). Note that
this force has direction, which you should indicate...
A space probe is traveling in outer space with a momentum that has a magnitude of 4.96 x 10 kg.m/s. A retrorocket is fired to slow down the probe. It applies a force to the probe that has a magnitude of 1.93 x 10 N and a direction opposite to the probe's motion. It fires for a period of 10.7 s. Determine the momentum of the probe after the retrorocket ceases to fire. A 48.0-kg skater is standing at rest...
answer all please
1 If a 71-kg astronaut at rest in space throws a ball with mass 0.61 kg at a speed of 12 mph. What happens to the astronaut as a result? 4 A moving ball collides elastically with another ball that is twice as heavy and is initially at rest. What happens to the lighter ball as a result of the collision? (a) She picks up some of the movement of the ball, causing her to move forward....
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on Earth. What will the traveler weight on another planet whose radius is 3 times that of the Earth and whose mass is also 9 times that of the Earth. Do not use any numerical values of the universal gravitational constant G, the mass of Earth, or the radius of Earth to get your answer. 2. Two skaters, a man and a woman, are standing...
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